Testing and Characterization The Universal Mycoplasma Detection Kit ATCC offers a quick and sensitive PCR-based test to detect mycoplasma contaminants in cell culture. All components required for the PCR reaction are provided and have been optimized for amplification. Cell Proliferation Assay Kits ATCC Cell Proliferation Assay kits are convenient and valuable tools for the quantitative evaluation of a cell population's response to external factors that affect cell viability and growth. STR Searchable Database As part of our continuing efforts to characterize and authenticate the cell lines in the Cell Biology collection, ATCC has developed a comprehensive database of short tandem repeat (STR) DNA profiles for all of our human cell lines.